I was eating anything except bread. Since bread was my demon I decided I had to go without it for an entire year to break the habit, lol. It worked. I allow myself bread now but don't eat it more than once or twice a week. 65 lbs in 3 months is in no way slow, how much did you think you'd lose in a month?
Best thing for your arms is to lift weights, tummy would be any type of ab exercise. The ball is great for crunches. Pilates is good for the core too.
Before/after pic in my profile.
Surgery: Dec 2009, lost 100 lbs